What is the mode of action of milrinone?

An 82 yo woman presents with acute shortness of breath and cough. She has been bedridden because she recently broke her hip and underwent surgery. Which one of the following conditions is the least likely explanation for her shortness of breath and cough?

Pictured is a sound tracing of a heart murmur. Identify the murmur.

Given the ECG tracing and the following information that is characteristic of this abnormality [QRS duration >120 msec (Incomplete = 100 to 120 msec), terminal R wave (positive) in V1 (usually rSR’) and prominent terminal S waves in in leads I, aVL, and V6], what is the diagnosis?

You are told that a teenage boy’s left ventricle (LV) is pumping 8 L/minute but only 5 L/min are entering into the ascending aorta. The right ventricle (RV) and the left atrium (LA) are also pumping 8 L/min but the right atrium (RA) is only pumping 5 L/minute. Which one of the following explanations is most likely?

A 57 yo woman with end-stage renal disease on hemodialysis presents to the emergency department with complaints of fevers and chills. Her white blood cell count is elevated, and on physical examination there is a murmur in the 2nd right intercostal space. What is the most likely clinical diagnosis?

An autopsy is performed on a 56 yo man who died suddenly. His coronary artery contains a thrombus completely obstructing the lumen of the left anterior descending artery. What initiated the thrombosis?

What is a major complication of a xenograft cardiac valve prosthesis?

At the autopsy of an afebrile patient who died of colon cancer, the following valve lesions were found. What is the term for this condition?

What is unique about Libman-Sachs endocarditis, seen in lupus patients, when compared to other types of endocarditis?